Is there a period tracker in Telegram?
Updated
Yes: a period tracker in Telegram is a bot you message, and every message you send reaches whoever runs that bot. Telegram's privacy policy says bot developers are independent of Telegram and that a bot gets the messages you send it (https://telegram.org/privacy), so check who runs a bot before you give it your cycle dates.
Three things are worth checking before any bot gets your cycle data. First, who runs the bot: Telegram's page for developers says each bot is connected to its owner's server, which processes what people send. Second, what the owner stores and who else receives it: the Dutch data protection authority, in a statement of 4 August 2026, advises checking what you consent to and keeping intimate details to yourself when that is unclear. Third, whether you can see and delete what was stored. Regulators act on this: in 2021 the US Federal Trade Commission ordered the Flo app to ask for consent before sharing health data, after Flo had passed such data to marketing and analytics firms.
Portal One, the assistant from Portal AI, runs in Telegram as @portal_open_bot and also in a web chat, and Portal AI runs that bot. To keep a period log, tell Portal in your private chat that you want to track your period; Portal asks once before keeping anything, and the tracker never works in a group. After that Portal records each start and end you give it in a separate encrypted log, not in the chat history, and forecasts the next period as a span of days around the middle value of your last six logged cycles. Any ovulation or fertile-day figure is a calendar estimate for awareness and never birth control.
What happens to what you write is set out on the trust page (https://portal.ai/trust): messages are stored on Portal's servers and passed to the model providers that write the replies, and the service is not end-to-end encrypted. Messages to any Telegram bot also pass through Telegram's own servers. The cycle log is not on the account page: in the chat you can ask Portal to export it, remove one entry or erase all of it. Portal is an AI, not a doctor, so symptoms that worry you go to a clinician.
Dated proof
- https://telegram.org/privacy
Read on 9 November 2026; the newest change entry is dated 21 August 2026. Section 6 says third-party developers build bots, those developers are independent of Telegram, and a bot receives the messages you send it along with your public account details.
- https://core.telegram.org/bots
Read on 9 November 2026, no date shown. Each bot is connected to its owner's server, which processes what users send, and a Telegram intermediary server handles the traffic with the Telegram API. A bot cannot start a conversation by itself.
- https://autoriteitpersoonsgegevens.nl/actueel/ap-privacyrisicos-door-gebruik-menstruatie-apps
Statement of 4 August 2026 by the Dutch data protection authority. Cycle data is special-category personal data that apps may in principle not collect unless, for example, the person has given explicit consent; people should check what they consent to and, when that is unclear or sharing cannot be refused, keep intimate details out.
- https://www.ftc.gov/news-events/news/press-releases/2021/06/ftc-finalizes-order-flo-health-fertility-tracking-app-shared-sensitive-health-data-facebook-google
Press release of 22 June 2021. The FTC says Flo shared users' health data with marketing and analytics firms, Facebook and Google among them, after promising to keep it private; the final order requires consent before sharing health data and an independent privacy review.
- https://portal.ai/trust
Read on 9 November 2026. Conversations are stored on Portal servers and passed to the model providers that write the replies, the service as a whole is not end-to-end encrypted, and what is stored can be seen, exported or deleted from the account page, except the cycle log, which is exported or erased in the chat.
Questions on this page
Is there a period tracker Telegram bot?
Yes. Portal One works in Telegram as @portal_open_bot. Tell Portal in your private chat that you want to track your period; Portal asks once before keeping anything, then records the starts and ends you give it and forecasts the next period from your own last six logged cycles.
Who sees my cycle dates if I send them to a bot?
The bot's owner receives every message you send, according to Telegram's privacy policy, and the messages pass through Telegram's servers. For Portal One, what you write and the log entries Portal reads to answer you go to the model providers that write the replies, and the service is not end-to-end encrypted. Each log entry is stored in Portal's database encrypted under a key used only for cycle logs. Once your Portal has opened your cycle log, the text of your messages is kept out of product analytics; your first message on the subject in Telegram can still reach analytics before that.
Can I delete what I told Portal?
Yes, in the chat. Ask Portal to remove one entry or to erase the whole cycle log; Portal confirms once and then deletes every entry at once, and deleting your account erases the log too. The cycle log is not on the account page. Database backups keep an encrypted copy until their retention ends.
Is the forecast good enough to avoid pregnancy?
No. Portal gives the next period as a span of days, and any fertile-day figure is a calendar estimate for awareness. Portal never calls a day safe. Once you tell Portal you use hormonal contraception, Portal stops estimating ovulation and fertile days.
How do I start?
Open the bot from the button on this page and tell Portal you want to track your period; Portal adds the tracker and asks before keeping anything. Portal One comes with a free 3-day trial, then a subscription; prices are on the pricing page (https://portal.ai/pricing).
The button opens @portal_open_bot in Telegram: a free 3-day trial, then a subscription.
Open in Telegram